Plane



UNITED STATES PATENT OFFICE.

CYRUS BAILEY, OF WESTERN SPRINGS, ILLINOIS.

PLANE.

Application filed March 12, 1919. Serial No. 282,140.

tion is'to provide improved means for ad justably holding the blade in position to in ure the desired cutting action when the plane is used in the usual manner.

A special object is to provide improved means whereby the blade is automatically raised when the plane is pulled backward, and lowered when the plane is pushed forward.

It is also an objectto provide certain details and features of construction tending to increase the general efficiency and the desirability of a plane of this particular character. I

To these and other useful ends the invention consists in matters hereinafter set forth and claimed.

In the accompanying drawings Figure 1 is a longitudinal section of a lame embodying the principles of the invention.

Fig. 2 is a plan of said plane.

3 is a transverse section on line 33 in 1.

4c is a transverse section on line el-4 in Fig. 1.

Fig. 5 is a rear end elevation of said plane.

As thus illustrated, the plane comprises a body 1 having side flanges 2 and a transverse slot 8 in the bottom thereof. The blade holder 4 is triangular in shape,and is pivoted at 5 near its front end, so that the rear end 6 of the holder tilts up and down. A blade or bit 7 is adjustably held on the front side of the blade holder in any suitable manner, 'as by the clamp 8, screw 9 and cam 10, in the manner shown, so that the blade or bit can be accurately adjusted on the holder and then firmly clamped in position, it being understood that the cam 10 is pivoted on the clamp 8 and adapted to press the spring 11 against the blade, thereby caus- Generally stated, the object of the invening the clamp S to fulcrum against the under rte of the head of the screw 7, and causing the lower end of said clamp to bear tightly a llllSl) the blade; but by lifting the handle or said cam, the blade will be released for removal or adjustment. A screw 12 is fixed upright in the body 1, in a hole 13 in the holder 1, and has a thumb nut 14 to bear upon the holder, when the latter tilts forward, thus adjustably limiting the tilting movement of the holder. A handle 15 is pivoted at 16 in the rear end of the holder, and the forward end 17 of the handle bears upon the body 1, being notched at 18 to eX- tend under the head of the screw 19 which is inserted in the body. A lrnob 20 is provided on the front end of the body 1, for one hand of the operator, the other hand grasping the handle 15, as will be readily understood.

' hen the plane is pulled backward by the handle 15, the end portion 17 fulcrums on the under side of the head of the screw 19,

and the rear end 6 of the holder is pulled downward, as shown, thus lifting the cutting edge of the blade; but when the plane is pushed forward, the end 17 fulcrums on the body, and the rear end 6 is lifted, thus lowering the edge of the blade into cutting po sitionfand, as will be shown, this automatic lowering of the blade into operative position is limited by the nut 14, whereby the blade has exactly the right cutting action. Thus the blade is automatically raised when the plane is pulled backward, s: that the cutting edge will not drag on the board, and the blade is then forced downward by the forward pressure on the rear handle 15, which causes the forward tilting of the holder.

With the foregoing construction it will be seen that the handle 15 moves forward and upward to lower the blade orbit, and then moves rearward and downward to lift the blade.

I claim as my-invention is:

1. A plane comprising a body, a blade holder pivoted on said body and provided with a rearwardly extending rigid bottom portion overlying the body in rear of said pivot, a blade adjustably mounted on said holder in front of said pivot, so that the cutting edge of the blade will be raised and lowered by up and down tilting motion of said rigid bottom portion of the holder, and a handle adapted for operating the plane holder about its pivot to raise the blade and connected at its lower end to said rearwardly extending portlon for tilting said when the plane is pulled backward and to lower the blade when the plane is pushed forward, the handle thereby having rearward and downward movement to 11ft the blade, and forward and upward movement to lower the blade.

-2. A plane as specified in claim 1, said handle being pivoted on said holder and provided with aforwardly extending portion, to bear upon thebody, saidbody having adjustable means to limit the tilting of the holder, and means to hold down said forwardly extending portion of the handle.

A plane as specified in claim 1, in combination with adjustable means to variably limit the tilting motion of said holder.

.4. A plane" comprising abody, a blade-. holder pivoted on said body and providedwith a rearwardly extending rigid bottom. portion overlying the-body in rear 'of said pivot, ablade adjustably mounted on said 7 holder, so that the cutting edge of the blade will be raised and lowered-by the up and down motion of said rigid bottom portion, i means in effect fulcrumed on the body and connected to sand rearwardly extending por- .tion for tilting the holder about its pivot, and a handle extendmg upwardly from said means, said handle having rearward and downward movement to lift the blade, and

forward and upward movement to lower the blade. 7 f a 5. A planecomprisingv a body, a blade holder pivoted on said body, a blade adjustably mountedoirsaid holder,'so that the cutting edgeof the blade will be raised'and lowered by tilting motion of the'body, and a handle for operating the plane and for tilting the'holder about its pivot to raise the blade'when the plane is pulled backward and to,--lower the blade when the plane is pushed forward, said'handle being pivoted -on said holder and provided with a fora blade or bit, a blade-holder therefor, means to mount the blade-holder for tilting movement to raise and lower the edge of the blade or bit, said blade-holder having a rigid rear extension forming a bottom portion overlylng the body and which swings up and down at the rear end thereof, and a handle disposed in rear of said means and suitably connected at its lower end with the swinging rear end of said rigid rear exten-; sion to tilt the blade-holder and thereby automatically raise and lower the edge of the blade or bit when the plane ismoved back and forth by means of said handle.

7. structure as specified in claim 6, in' combination with means to adjustably limit the up and; down movement of said rigid rear extension on the blade-holder.

8. A structure as specified in claim 6, said handle being pivoted at its lower .end on said rear extension of the blade-holder, and means providing a fulcrum for said handle on the body. 7

9. A structure as specifiedin claim 6, in combination with means for fulcruming the handle on the body, and means for adjustably'limiting the up and down movements of said rigid rear extension of the bladeholder. .7

10. A plane comprising a body, a bladeholder pivoted on said body and. provided with a rearwardly extending rigid bottom portion overlying the body in rear of said pivot, a blade adjustably mounted on said holder, so that the cutting edgelof the blade will be raised and lowered by tilting motion of the holder, and a handle adapted for operating the plane and connected at its lower end to said rearwardly extending portion for tilting'the holder aboutlts pivot to raise the blade when the plane is pulled backward and'to lower theblade when the plane is pushed forward, said handle being pivoted on said rearwardly extending rigid bottom portion and provided with a forwardly extending lower portion to bear upon the body, adjustable means to limit the tilting of the holder, and means to hold down and in effect fulcrum said forwardly extending portion of the handle on the body.

Sigi'ied. V

CYRUS BAILEY. 

